Apparatus for forming castings about pipes.



J. LAWSON. APPARATUS FOR FORMING GASTINGS ABOUT PIPES.

APPLICATION FILED OCT. 25, 1909.

Patented M11122, 1910.

tinrr stares w FFKCE.

JOHN LAWSON, OF COPPER CLIFF, ONTARIO, CANADA, ASSIGNOR TO INTERNATIONAL NICKEL COMPANY, OF N EW YORK, N.

Y., A CORPORATION OF NEW JERSEY.

APPARATUS FOR FORMING CASTINGS ABOUT PIPES.

Specification of Letters Patent.

Patented Mar. 22, 1910.

Application filed October 25,1909. Serial No. 524,441.

'1' i) all whom ii may concern:

Be it known that I, Join" LAWSONLCUZ Copper (llifl, Ontario, Canada, have mvented a new and useful Apparatus for companying drawing, in which the figure,

is a sectional perspective view showing one form of molding-flask arranged in accordance with my invention.

In the casting of pipes into metal bodies, such cast iron, it has been found dittieult to maintain the pipes in their proper position during the pouring and solidifying of the overlying metal; and this is especially ditiicult in the case of water jackets for furnaces where the thickness of metal overlying 'the pipes is relatively small. In such cases there is a strong tendency of the pipes to war out of alinement, both vertically and horizontally; and also for the piping to float or rise in the mold cavity. 'lhese dii' ficultieS are overcome by my invention, which consists in an improved holding system for retaining the pipes in position during the casting operation.

In the-drawing, A represents the dra and B the cope ot the molding flask.

C is a coke bed, which l preferably term on the bottom part within the drag, above which sand is filled in the ordinary manner.

The molding ea'vity may be formed n any usual or desirable way, and within the drag I preferably en'ibcd bricks J, beyond the ends of the molding cavity and arranged to form firm supports tor the ends of the clamping bar F. Core blocks K are positioned in the drag over the ends of the clamping bar, these being held in place preferably by wedges L, which are driven in .between the core blocks and the cross-framing of. the cope.

E, E are the pipes to be inclosed in the casting, these being held within recessed or corrugated portions of the clamping bars by means of bolts H, which engage the wedgc-shaped'cast iron clips G fitting between the pipes on their under side and preferably curved at their ends to fit the pipes. The bars F are spaced apart any desired distance, and are used to any desirable number, depending on the work in hand. Their width and thickness may also be varied in accordance with the particular case.

When the parts are assembled, it will be noted that. the pipes are securely clamped at l intervals throughout their length, to prevent t warping and to hold them rigidly in proper l position within the casting. The clamping bars are securely held between the blocks or I bricks J, and the core blocks K beyond the t mold cavity; and the bars F and clips (,l are l cast into the cooler or casting. 'hen the casting is removed, the ends of the bar F which project beyond the mold cavity may be broken off.

My invention is notlimited to any par- Which pipes and the like are to be embedded.

and size of the clamping bars, and the means for holding the pipes thereto, as well as in the means for anchoring the clamping bars in place, without departing from my in- \entionl I claim l. A molded mold having a mold cavity, a clamping bar extending through the mold l i Many changes may be made in the form t said bar in the body portion of the molded mold, and means for securing a pipe or the like to said bane portion of said bar with the pipe to be permanently embedded in the cast article, substantially as described.

2. In a mold for forming a casting hav- 1 ing pipes or the like embedded therein, a clamping bar extending across the mold cavity and anchored at its ends, said. bar having seats to receive the pipes, and means "for securing the pipes firmly in said seats, a portion at least of the bar and the securing means being arranged to be permanently embedded in the formed casting with the pipes. substantially as described.

' 3. In a mold for forming a casting having pipes or the like embedded therein, a plurality of clamping bars extending across the mold cavity and spaced from each other, andv clips for securing the pipes to the bar, said clips and a portion at least of the bar being arranged to be permanently embedded in the formed casting, substantially as described.

4. In a mold for forming a casting having pipes or the like embedded therein, a

cavity, means for anchoring the ends of clamping bar extending across the mold cavity with its ends extending into the mold body, said bars having seats for the pipes, means for securing the pipes in said seats, and blocks between which the ends of said bar are secured, substantially as described.

5. In a mold for forming a casting having pipes or the like embedded therein, a

clamping bar extendin across the mold cavity, means for anchorlng the ends of'said bar in the mold material at opposite sides of the mold cavit said bar having a series of pipe-seating recesses therein, and clips secured to the said her and holding the pipes in said recesses, substantially as de= scribed. v

6. In a mold for forming a casting having pipes. or the like embeddedqtherein, a

said recesses, the end clamping "bar extendingacross the mold cavity and having a plurality cf pipe-seatin'g recesses therein, and means for securing the pipes to be embedded in the casting in rtion of the bar exdiorming material at cavity, blocks upon of the bar are supforming a part of the cavity, and means for tending into the mol each side of the mold which the end portions ported, core blocks walls of the mold clamping said blocks against the endjportions of the bar,

In testimony whereof, I have hereunto set my hand.

- JOHN LAWSON; Witnesses:

G. E. Smvnsmn, F. O. KIMMERLY.

substantially as described. 

